Jean-Sébastien Tassé

      Jean-Sébastien Tassé

      Product Manager

      Jean-Sébastien Tassé has more than 13 years of experience in sales and marketing in the high-tech sector. He currently holds the position of Product Line Manager in EXFO’s optical business unit, where he oversees the business strategy, roadmap and launch strategy of the optical spectrum analyzer and dispersion product lines. At EXFO, he is also business development manager for the market segments of submarine networks and fronthaul/backhaul networks (optical products). He began his career as Sales Engineer for Gentec Electro-Optics, where he was responsible for direct and channel sales in specific regions in the Americas, Asia and Europe. As Business Development Manager for the Thin Film Research Laboratory at the École Polytechnique de Montréal/University of Montreal, he was instrumental in delivering revenue growth in analytical services for companies. Jean-Sébastien holds a bachelor's degree in Engineering Physics and a master’s degree in Electrical Engineering (optics) from Université Laval, in Québec City, Canada.


      Articles from this author

       

      Overcoming C-RAN growing pains

      By: Jean-Sébastien Tassé | Category: Fiber everywhere, Internet of Things (IoT), Mobile infrastructure | Posted date: 2017-05-11 | Views: 1629

      Migrating from distributed RAN (D-RAN) technology to centralized radio access networks (C-RAN) is the next innovation in mobile fronthaul architecture – a trend that is already taking off in many parts of the world.

      Other languages >zh

      Overcoming Network Failures in C-RAN for 5G-Readiness

      By: Jean-Sébastien Tassé | Category: Fiber everywhere, Internet of Things (IoT), Mobile infrastructure | Posted date: 2017-02-09 | Views: 3029

      5G is the next evolutionary step in cellular communication positioned to become the global wireless standard for a totally connected society.

      Other languages >zh

      Slaying the Dragon: The Why, Where and How of Dispersion Testing

      By: Jean-Sébastien Tassé | Category: Fiber everywhere | Posted date: 2016-07-14 | Views: 3663

      Dispersion can cause everything from sporadic errors to systematic failures—unless you can find and take it out first.

      Other languages >zh

      New Standard from IEC: Dispersion Measurement Methods

      By: Jean-Sébastien Tassé | Category: Fiber everywhere | Posted date: 2016-06-23 | Views: 3610

      It is well-known that PMD is an important type of dispersion (the other one being chromatic dispersion) that distorts signals by increasing their duration, and that it can lead to bit errors in extreme cases. Therefore, PMD limits how fast and how far a signal can travel.

      Other languages >zh

      New Standard from IEC: OSNR Measurements

      By: Jean-Sébastien Tassé | Category: Fiber everywhere | Posted date: 2016-06-09 | Views: 3856

      The IEC recently published the long-awaited 61282-12 standard on OSNR measurements, Fibre optic communication system design guides – Part 12: In-band optical signal-to-noise ratio (OSNR). It includes key OSNR definitions applicable to latest technological advances, such as reconfigurable add/drop multiplexers (ROADM), and 100G+ signals.

      Other languages >zh

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      Webinars from this author

       

      Why C-RAN deployments will give you more headaches than D-RAN

      By: Jean-Sébastien Tassé | Category: Carrier Ethernet Networks, Backhaul (OBSAI, CPRI, GigE), Private/Utility

      On the road to 5G, centralized radio access network (C-RAN) architecture is a key stepping stone. C-RAN is the next logical evolution in fiber-to-the-antenna (FTTA) networks, or distributed RAN (D-RAN), and involves centralizing several baseband units (BBUs) in a location away from the towers and antennas, rather than collocating BBUs with the remote radio head (RRH) on the antenna site.


      From Centralized RAN to Cloud RAN (hosted by IHS)

      By: Yvon Rouault, Jean-Sébastien Tassé | Category: Carrier Ethernet Networks, Backhaul (OBSAI, CPRI, GigE), Private/Utility

      The move from centralized to virtual radio access networks (RANs) is already happening, with baseband unit (BBU) virtualization moving many functions to software, paving the way for 5G and pre-5G LTE-Advanced (LTE-A). This webinar explores the market drivers and the technical challenges of the RAN transformation from fiber to the antenna (FTTA) to centralized RAN (C-RAN) and virtual RAN, the state of virtualized baseband unit (vBBU), the long-term evolution of fronthaul beyond the Common Public Radio Interface (CPRI) to packet-based transport, and testing requirements at the optical and protocol layers.


      Deep Dive into Dispersion Testing: Concepts and Applications

      By: Jean-Sébastien Tassé | Category: High-Speed Networks: SONET/SDH, OTN, WDM, 40G/100G/400G

      Dispersion, if not properly tested and managed, can have very serious impacts on system performance ranging from sporadic errors to systematic failures.


      Reaching 10G in Mobile Fiber Networks

      By: Jean-Sébastien Tassé | Category: High-Speed Networks: SONET/SDH, OTN, WDM, 40G/100G/400G

      Driven to a large extent by the increasing use of wireless bandwidth, mobile fiber infrastructures or fiber-to-the-antenna (FTTA) networks are growing very fast. Indeed, the fast adoption of smartphones and mobile video streaming is generating so much bandwidth demand that unprecedented data rates are now being deployed in mobile backhaul and metro rings, often at 10 Gbit/s. 


      Implementing 100G in Carrier Networks (Hosted by Lightwave)

      By: Jean-Sébastien Tassé | Category: High-Speed Networks: SONET/SDH, OTN, WDM, 40G/100G/400G

      Carrier network operators of all stripes are increasing their bandwidth capacity to 100 Gbps. While this trend began in the long haul, we have quickly seen carriers look to extend its use into metro and regional networks.  Regardless of the application, however, carrier have to make the right technology choices that will meet their needs for 100G now, while setting the stage for even greater data rates in the future. The characteristics of the current network infrastructure are important in such choices. So too, of course, is deploying the technology correctly and efficiently. In this webinar, you'll learn about the current 100G options, upcoming technologies, and strategies for successful 100G deployments.


      Putting NFV to the Test (Hosted by Light Reading)

      By: Jean-Sébastien Tassé | Category: Service Assurance: Network and Fiber Performance/Integrity Monitoring

      The move to virtualization will create new service opportunities and new flexibility for telecom networks, but will also introduce new complexities that will challenge the ability to offer the highly reliable, predictable and available networks for which telecom has been known. Key to address those challenges are the evolving test strategies that will enable network operators to ensure the performance of virtual network functions, and to address the changes in underlying physical elements as well. This webinar features experts from CenturyLink, EXFO and Spirent sharing their experience in moving virtualization from proofs of concept into the real world, and offers a practical look at the testing issues that must be addressed to support virtualization going forward.


      How to Choose the Best Spectral Testing Instrument for Your Application

      By: Jean-Sébastien Tassé | Category: High-Speed Networks: SONET/SDH, OTN, WDM, 40G/100G/400G

      Optical spectrum analyzers (OSAs), channel analyzers and optical channel analyzers are just some of the many types of products that can be used to perform spectral analysis. There are also many models within each product category and several vendors, making the task of choosing the best product for your application seem complex. 


      When and why does polarization mode dispersion (PMD) compensation fail in 40G/100G+ coherent systems?

      By: Jean-Sébastien Tassé | Category: High-Speed Networks: SONET/SDH, OTN, WDM, 40G/100G/400G

      Thanks to the advanced algorithms, coherent systems promise to compensate for PMD in real time. However, do they actually deliver on that promise?


      Deployment strategies for 40G/100G coherent networks: trade-offs and impacts

      By: Jean-Sébastien Tassé | Category: High-Speed Networks: SONET/SDH, OTN, WDM, 40G/100G/400G

      When deploying 40G/100G technologies, service providers must choose whether the new wavelengths will be deployed over an existing network and traffic (brownfield deployments) or over unused, new fibers (greenfield deployments). This choice usually depends on the context, type of network (metro, long-haul, etc.), capacity requirements and so forth. But more importantly, each approach has its pros and cons, and specific set of challenges. 


      OSNR Measurement in Coherent 40G/100G Networks

      By: Jean-Sébastien Tassé, Annachiara Pagano | Category: Optical Testing and Monitoring

      Join EXFO and Telecom Italia, the largest operator in Italy, as they discuss optical signal-to-noise ratio (OSNR) measurements in 40G/100G networks. During this webinar, Telecom Italia will explain why OSNR measurements are critical, and how they can help increase network reliability.


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